Anyone Else Hear a Train Horn Blaring for over 20 minutes Last Night?

There’s a train horn that’s been going on since at least 11:55, but that’s just when I looked at the clock. I’m sure that the horn doesn’t exist solely to annoy me, so I was wondering if you or your readers had any idea why it’s been going on for 20+ minutes. I live in Hill East and can hear it quite clearly, so I feel bad for anyone that lives closer to the tracks or Union Station.”